| The Genealogy Page of Jorge Heredia and Heleen Sittig | ||
| Helena Cosman Keijzer25 Apr 1795 - 14 May 1851
 Mother: Wilhelmina Joseph Family 1 : Jacob Salomon Stibbe 
 
 
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                                                |  
                           _Eliazer Mannes _____|
                          |                     |
                          |                     |__
                          |                        
 _Cosman Eliazar Keijzer _|
| (1750 - 1841)           |
|                         |                      __
|                         |                     |  
|                         |_Roosje Hartogh _____|
|                                               |
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|                                                  
|
|--Helena Cosman Keijzer 
|  (1795 - 1851)
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|                          _____________________|
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|                         |                        
|_Wilhelmina Joseph ______|
  (1761 - 1828)           |
                          |                      __
                          |                     |  
                          |_____________________|
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